I am having a problem with my bosses BB. When he sends e-mails he gets a red x instead of a check mark and the e-mails are not going through. He cannot receive them either. I have checked his wireless icon and signal strength everything seems fine.

the edge symbol is showing I dont know about the BIS or BES but we do not have our own server. the e-mail acts like its going through with a check then the check turns to a red X. I dont know where it goes.

If you are using BIS 2.0 try this (Before deleting the Web Client Service Book, be sure you are able to have them sent to the device):

Cause 3

You upgraded to BlackBerry Internet Service 2.0, but the Web Client [CMIME] service book is still the default message service.
Resolution

Complete the following tasks:

1. Delete the Web Client [CMIME] service book from the device. For instructions, see KB-05000.
2. Go to Options > Service Book (or Options > Advanced Options > Service Book, depending on the device software version) to confirm that the Blackberry Internet 2.0 services book(s) have been sent to the device.

The service book(s) appear on your device as follows: <email account> [CMIME], where email account is the account you have integrated with BlackBerry Internet Service. If you have more than one account integrated with the BlackBerry Internet Service account, more than one BlackBerry Internet Service service book appears on the device.
3. If the BlackBerry Internet Service 2.0 service books do not appear on the device, send them. For instructions, see KB-02830.